whitespace fixes

diff --git a/libbb/getopt32.c b/libbb/getopt32.c
index 46807a3..f48ccaa 100644
--- a/libbb/getopt32.c
+++ b/libbb/getopt32.c
@@ -505,7 +505,7 @@
 	 * affairs is that BSD-derived versions of getopt() misbehave if
 	 * optind is set to 0 in order to reset getopt(), and glibc's getopt()
 	 * will core dump if optind is set 1 in order to reset getopt().
-	 * 
+	 *
 	 * More modern versions of BSD require that optreset be set to 1 in
 	 * order to reset getopt().   Sigh.  Standards, anyone?
 	 */
diff --git a/miscutils/microcom.c b/miscutils/microcom.c
index 2857a1b..ea48291 100644
--- a/miscutils/microcom.c
+++ b/miscutils/microcom.c
@@ -19,7 +19,7 @@
 
 // set raw tty mode
 static void xget1(int fd, struct termios *t, struct termios *oldt)
-{ 
+{
 	tcgetattr(fd, oldt);
 	*t = *oldt;
 	cfmakeraw(t);
diff --git a/shell/ash.c b/shell/ash.c
index 4f9caa4..668953c 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -9115,7 +9115,7 @@
  * For a non-interactive shell, an error condition encountered
  * by a special built-in ... shall cause the shell to write a diagnostic message
  * to standard error and exit as shown in the following table:
- * Error                                           Special Built-In 
+ * Error                                           Special Built-In
  * ...
  * Utility syntax error (option or operand error)  Shall exit
  * ...